The cost of the gasoline in US dollars is $53.24.
Exchange rate is the rate at which one currency is exchanged for another currency. In this question, $1 would be exchanged for 1.26 Canadian dollars.
In order to convert 15 gallons to liters, multiply 15 by 3.79
15 x 3.79 = 56.85 liters
56.85 liters x C$1.18 = C$67.083
C$67.083 / 1.26 = $53.24
To learn more about exchange rate, please check: https://brainly.com/question/25780725